Having reexmined the shots I've found three sharp images:
1. the 70mm macro shot of the petrified wood
2. the B&W car bumper taken with the 50f1.4 at f5.6
3. the landscape taken with the 30mm f1.4 (center only)

conclusion: the SD1 shines only when using the best fixed focal length lenses at their best aperture. Would also really love to see some shots taken at iso 100 using a tripod with mirror up to eliminate any camera shake. And as someone mentioned earlier, using Leica R glass would really help.